Same here!! Perfect before 2.0.2 and now, I have the same problem as you, edge works OK, but 3G gets nothing more often than not even with fine signal. I'm in the DC metro area (Alexandria, VA). I work in southern MD where I never get 3G, and usually don't get any service whatsoeverIt's hit or miss for me (Columbia, MD). It works for the earlier part of the day, then at night I have full bars of 3G but data does not work at all. If I use EDGE it works fine, turning 3G back on...nothing. Been happening since I updated to 2.0.2. My other iPhone with 2.0.1 works on 3G all the time, even when the 2.0.2 phone does not. I'm blaming 2.0.2 for the issue. I tried to go back to 2.0.1 but iTunes wouldn't let meGot some sort of error code during the restore.
fine here in columbia. I'm getting 1.2 Mbps
Im in Dundalk, and i have no problems with my service at all. About 2 weeks ago i read on a forum (may have been this one) that AT&T was upgrading towers in Baltimore, and the next day my service was amazing and hasnt been back since. Its like having a new phone.